package com.example.test0519.controller;

import com.example.test0519.bean.UserBean;
import com.example.test0519.bean.UserImgBean;
import com.example.test0519.service.UserService;
import com.example.test0519.utils.FileUtils;
import com.github.pagehelper.PageInfo;
import com.sun.org.apache.regexp.internal.RE;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

/**
 * @author Sakura
 */
@Controller
public class UserController {

    @Resource
    UserService userService;

//    @RequestMapping("/users")
//    public String showUsers(ModelMap modelMap){
//        List<UserBean> userList = userService.getAllUser();
//        modelMap.addAttribute("userList",userList);
//        return "users";
//    }

    @RequestMapping("/users")
    public String index(Model model, HttpSession session,@RequestParam(defaultValue = "2") Integer pageNum,@RequestParam(defaultValue = "3")Integer pageSize){
            PageInfo<UserBean> pageInfo = userService.selectUser4Page(pageNum,pageSize);
            //使用model传参数到前端
            model.addAttribute("pageInfo",pageInfo);
            model.addAttribute("userList",pageInfo.getList());
            return "users";
    }


    @RequestMapping("/addUser")
    @ResponseBody
    public Map addUser(UserBean userBean){
        int flag = userService.insertUser(userBean);
        Map<String,Object> map = new HashMap<String, Object>();
        if (flag == 1){
            map.put("msg","新增用户成功");
            return map;
        }else {
            map.put("msg","新增用户失败");
            return map;
        }
    }

    @RequestMapping(value = "/deleteUser+{id}")
    public String deleteUser(@PathVariable("id") String id,ModelMap modelMap){
        int flag = userService.deleteUser(id);
        List<UserBean> userList = userService.getAllUser();
        modelMap.addAttribute("userList",userList);
        if (flag == 1){
            return "users";
        }else {
            return "error";
        }
    }

    @RequestMapping("/user+{id}")
    public String getUserById(@PathVariable("id") String id,ModelMap modelMap){
        UserBean userBean = userService.getUserById(id);
        List<UserImgBean> listUserImgBean = userService.getUserImgById(id);
        modelMap.addAttribute("user",userBean);
        modelMap.addAttribute("userImgList",listUserImgBean);
        return "userInfo";
    }

    @RequestMapping("/modifyUser")
    @ResponseBody
    public Map updateUser(UserBean userBean){
        int flag = userService.updateUser(userBean);
        Map<String,Object> map = new HashMap<>();
        if (flag == 1){
            map.put("msg","修改用户信息成功");
            return map;
        }else {
            map.put("msg","修改用户信息失败");
            return map;
        }
    }

    @RequestMapping(value = "/addUser",method = RequestMethod.POST)
    @ResponseBody
    public Map addUser(UserBean userBean, HttpServletRequest request){
        int flag = userService.insertUser(userBean);
        UserImgBean userImgBean = new UserImgBean();
        List<MultipartFile> files = ((MultipartHttpServletRequest)request).getFiles("file");
        for (MultipartFile multipartFile:files){
            if (multipartFile.isEmpty()){
                continue;
            }
            byte[] fileBytes = new byte[0];
            try {
                fileBytes = multipartFile.getBytes();
                String originalFilename = multipartFile.getOriginalFilename();
                originalFilename = originalFilename.substring(originalFilename.lastIndexOf("."));
                String fileName = UUID.randomUUID()+originalFilename;
                boolean bRet = FileUtils.uploadFile(fileBytes,"static/upload/"+fileName);
                if (bRet == false){
                    continue;
                }
                userImgBean.setId(0);
                userImgBean.setUser_id(userBean.getId());
                userImgBean.setImg("upload/"+fileName);
                int iFlag = userService.insertUserImg(userImgBean);
            }catch (IOException e){
                e.printStackTrace();
            }
        }
        Map<String,Object> map = new HashMap<String, Object>();
        if (flag == 1){
            map.put("msg","新增用户成功");
            return map;
        }else {
            map.put("msg","新增用户失败");
            return map;
        }
    }

}
